Tsar Nicholas II and Tsarina Alexandra were the Romanov rulers of Russia when the Bolshevik revolution took place in 1917. During this revolution, Tsar Nicholas II was overthrown, and the majority of his family members were killed. The remains of two of the Tsar and Tsarina’s children, Alexei and Anastasia, were never found. Suppose two people came forward who claims to be the missing Romanovs. Which technology could only be used to identify Alexei? DNA technology STR analysis mtDNA analysis Y-chromosome analysis

Answers

Answer 1

Answer:

Answer:

Option D, Y-chromosome analysis

Explanation:

In this technique, DNA is analysed in a way to study the hierarchical progression of Y chromosomes in the males . This methodology help in identifying the family background of any individual based on his/her gene analysis.

The Y chromosome is passed on from one generation to another in sons as sons have one Y chromosome and one X chromosome while daughters have two X chromosome one from the father and the another one from the mother.

It is convenient to study the Y chromosomes in male to identify the family background.

Hence option D is correct

Answer 2

Answer: D. Y-chromosome analysis
Hope this helps!! :)

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Answers

Skeletal structures or Bones

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Answers

Answer:

When anyone testing different levels of acid and bases some safety rules must be followed like:

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Answers

Answer: B. great impact when humans use alternative water sources for non drinking functions.

Great impact when humans use alternative water sources for non drinking functions is the correct option because use of alternative water sources can deplete the overall available water for the present as well as for the future generation of the human population. This is against the concept of sustainable development which suggests that natural resources should be used in such a way so that these can meet the needs of the present population as well as that of future generation.

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Answers

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Answers

Answer:

C)Aerobic respiration uses oxygen, anaerobic respiration does not

C) aerobic respiration uses oxygen, anaerobic respiration does not.

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Answers

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Answer:

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Explanation:

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